Exactly, which can become problematic for instances where community and instance rulesets conflict.

That's basically a natural selection process though, worst case is that you'll want a second account somewhere else (e.g. several other instances have .ml banned because of politics as far as I know).

That's the downside of the whole federation thingy - something I'll personally happily take but everyone needs to be aware of.

That said: welcome! Take a seat, grab a drink, have fun :)